Introducing the Condor Array Telescope. I. Motivation, Configuration, and Performance
Introducing the Condor Array Telescope. I. Motivation, Configuration, and Performance
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介绍秃鹰阵列望远镜。
DOI：
10.1088/1538-3873/acaee6
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发表时间：
2023
影响因子：
3.5
通讯作者：
Webb, John K.
中科院分区：
文献类型：
--
作者：
Lanzetta, Kenneth M.;Gromoll, Stefan;Shara, Michael M.;Berg, Stephen;Valls-Gabaud, David;Walter, Frederick M.;Webb, John K.
“秃鹰阵列望远镜”或“秃鹰”是一种高性能的“阵列望远镜”，由六个物镜直径180 mm的无色差折射望远镜组成，每个望远镜都配备了一个大幅面、极低读取噪声(≈1.2e−)、极快读取时间(<；1 S)的cmos相机。秃鹰位于新墨西哥州西南角的一个非常黑暗的天文地点，在阿尼马斯附近的新墨西哥州黑暗天空天文台，大约在图森和埃尔帕索之间(距离图森和埃尔帕索超过150公里)的中间。秃鹰拥有宽视场(2.29×1.53deg2或3.50deg2)，针对点源和扩展的极低表面亮度特征进行了优化，对于宽带图像可以在60 S(甚至更低)的节奏下操作，同时保持天空噪声限制，占空比接近100%。在其正常工作模式下，秃鹰可以在数十或数百小时的停留时间内获得曝光时间为60 S的宽带曝光。通过这种方式，秃鹰在以60 S的节奏同时监测每个场数以万计或数十万个点源的同时，建立深层、灵敏的图像。秃鹰还配备了衍射光栅，并配备了一套He II 468.6 nm、[O III]500.7 nm、He I 587.5 nm、Hα656.3 nm、[N II]658.4 nm和[S II]671.6 nm窄带滤光片，使其能够解决各种宽带和窄带科学问题。凭借其独特的能力，秃鹰可以进入以前从未被研究过的“天文发现空间”区域。在这里，我们将介绍秃鹰，并描述其性能的各个方面。
The" Condor Array Telescope" or" Condor" is a high-performance" array telescope" comprised of six apochromatic refracting telescopes of objective diameter 180 mm, each equipped with a large-format, very low-read-noise (≈ 1.2 e−), very rapid-read-time (< 1 s) CMOS camera. Condor is located at a very dark astronomical site in the southwest corner of New Mexico, at the Dark Sky New Mexico observatory near Animas, roughly midway between (and more than 150 km from either) Tucson and El Paso. Condor enjoys a wide field of view (2.29× 1.53 deg 2 or 3.50 deg 2), is optimized for measuring both point sources and extended, very low-surface-brightness features, and for broad-band images can operate at a cadence of 60 s (or even less) while remaining sky-noise limited with a duty cycle near 100%. In its normal mode of operation, Condor obtains broad-band exposures of exposure time 60 s over dwell times spanning dozens or hundreds of hours. In this way, Condor builds up deep, sensitive images while simultaneously monitoring tens or hundreds of thousands of point sources per field at a cadence of 60 s. Condor is also equipped with diffraction gratings and with a set of He ii 468.6 nm,[O iii] 500.7 nm, He i 587.5 nm, Hα 656.3 nm,[N ii] 658.4 nm, and [S ii] 671.6 nm narrow-band filters, allowing it to address a variety of broad-and narrow-band science issues. Given its unique capabilities, Condor can access regions of" astronomical discovery space" that have never before been studied. Here we introduce Condor and describe various aspects of its performance.
一种表征天文图像广角点扩散函数的方法
影响因子：
4.9
作者：
Q. Liu 刘;R. Abraham;C. Gilhuly;P. V. van Dokkum;P. Martin;J. Li 李;J. Greco;D. Lokhorst;Seery Chen;S. Danieli;M. Keim;A. Merritt;T. Miller;I. Pasha;Ava Polzin;Zili Shen;J. Zhang 张
通讯作者：
J. Zhang 张
视域有限的成像巡天——小型与大型望远镜
影响因子：
3.5
作者：
E. Ofek;S. Ben
通讯作者：
S. Ben